The Fifteenth Doctor is set to take full charge of the TARDIS for 2023’s Doctor Who festive special, and excitement levels couldn’t be higher. Through November and December, the longest-running sci-fi show on the planet celebrated its 60th birthday with three specials. That celebration recaptured one of the greatest Doctor-companion partnerships of the show’s modern era (from 2005), as David Tennant’s Fourteenth Doctor reteamed with Catherine Tate’s Donna Noble.